Download Wade03 estructura y estereoquimica de alcanos . leccin 5. alcanos y cicloalcanos – orgnica 2 leccin 5. Documents. estereoquímica introducción los isómeros estructurales se definen como isómeros, todos aquellos compuestos químicos que poseen igual fórmula global, . Estereoquímica es el término aplicado a los aspectos tridimensionales de la estructura CAPÍTULO TRES Conformaciones de alcanos y cicloalcanos.

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Alcohols are compounds whose molecules have a hydroxyl. The simplest alkane is methane, CH4.

Boat Conformation of Cyclohexane Caption: Sobre el proyecto SlidePlayer Condiciones de uso. The molecular formula of alkanes is CnH2n, two hydrogen less than an alcamos chain alkane.

Newman Projections of Butane Caption: The Newman Projection of Propane Caption: All the carbon-carbon bonds are estereoquimicw, generating torsional ciloalcanos that contributes to the total ring strain. This kind of interference between two bulky groups is called steric strain or steric hindrance. There are two possible geometric isomers for decalin: Angle Strain in Cyclopropane Caption: Listed in Table 3. The four hydrogen atoms are covalently bonded to the central carbon atom, with bond lengths of 1.


The eclipsed conformation is about 3.

Number the carbons, starting closest to the first branch. The high reactivity of cyclopropanes is due to the non-linear overlap of the sp3 orbitals. An equatorial methyl group will be anti to the C3.

These conformations have equal energies, and they are present in equal amounts. Ambas conformaciones tienen un metil axial y otro ecuatorial. Home Education Wade03 estructura y estereoquimica de alcanos. The melting point curve for n-alkanes with even numbers of carbon atoms is slightly higher than that for alkanes cicloalcnos odd numbers of carbons.

Estructura y Estereoquímica de Alcanos – ppt video online descargar

Cyclobutane adopts the folded conformation to decrease the torsional alcamos caused by eclipsing hydrogens. Conformations of Cyclopropane Caption: Ignore di- tri- etc. This conformation is lower in energy and favored over the conformation with the methyl in the axial position. The most stable conformation is the chair because it has all the C-H bonds staggered.


Conformational Analysis of Ethane Caption: To use this website, you must agree to our Privacy Policyincluding cookie policy. Cyclohexane can adopt four non-planar conformations: Alcanos ramificados tienen p.

Wade03 estructura y estereoquimica de alcanos

The torsional energy of ethane is lowest in the staggered conformation. Some groups are so bulky estereoquimiica they are extremely hindered in axial positions. Conformations of Ethane Caption: Conformations of Cyclopentane Caption: Two chair conformations are possible for cis-1,3-dimethylcyclohexane.

Conformational Analysis of Propane Caption: The unfavorable conformation has both methyl groups in axial positions, with a 1,3-diaxial interaction between them.